The World Legal Information Institute makes available on its website LawCite, which supports searches in a range of global legal databases with respect to:
- Neutral citation
- Article title
- Cases considered
- Leglisation and section considered
The results are presented in a table.
Particularly interesting are extraction of parties and cases/legislation considered.
What is not clear is just how this information is indexed in the cases, whether manually or by some automated text analysis.
In addition to LawCite, WorldLII has a variety of categories among which one can search, including subjects, lawyers, parliaments.
The interesting part for me about the nature of the searches as well as the categories is that they express an informal legal ontology.